Of course. The British has done exactly the same thing also and continue to do so. Following my departure from MSM 4years ago you realize how pernicious and clever the BBC for example operates. I.e. It will have more people on a panel pro their agenda.
You do realize if that was the case they have the perfect template to copy in the way the British do their manipulation.
Again, no different than the UK. Perfect example: Skripal case, how many times has the story and narrative changed? Buffoon Boris is doing a sterling job as is the BBC and Sky and the tabloid press.
From the UK press too, but the UK press has been far more diverse eg they are critically ill, they should allow them to die with dignity, oh look she's walking around and is fine. A nerve agent that is 10x more potent than VX, designed to kill instantly and somehow it takes 5hrs to take effect.
I think the problem with your thinking, is that you've failed to take into account the differences between how each different regime (west vs east) behaves, and the practical differences that creates. According to your position, the UK is playing pretty much the same game as Russia, so therefore we're just as bad. (misinformation, conspiracies, etc)
The problem with that, especially in your reference to the issues in Sailsbury and the apparent change of stories - if your argument is played back to you, it turns into a conspiracy theory - at which point that implies that the UK government are actively creating and sustaining conspiracies, in order to achieve tactical objectives, which is highly problematic.
My personal view, is that this all falls down immediately - because the UK doesn't have sufficient skill, or power over it's people to pull off. In order to pull of a conspiracy - it requires heaps of power, because if anyone blabs or leaks (which has never been easier to do in this day and age) the whole thing comes crashing down. If I knew of a UK government conspiracy - I'd have no hesitation in going to every tabloid and leaking it immediately for cash whilst laughing - because nothing will happen to me. However - I wouldn't even dare think it, if I was Russian and knew of a similar scenario - because I'd be killed, which for me highlights the majors differences.
Russia has enough power over it's people, that it's able to just say and do what it likes, anyone who opposes it gets killed, anyone who disagrees with it gets killed, so they can act with far more impunity than our politicians. In the UK you have stacks of media organisations, hot-shot freelance reporters at every level who are champing at the bit to get the latest story to leak to everyone without any repercussions.
Our politicians make far too many stupid mistakes, you mention Boris Johnson - there isn't a person in the world more incapable of ******* up a conspiracy, remember that time he went on the TV to make a statement, to try and save that women in Iran from Prison? Remember how he slipped up on TV and basically condemned her to rot in jail, by telling the exact opposite of what her, her lawyers, her family and the evidence was saying, because he's a total berk.